Quick, spacious and stylish, but relatively pricey. A fast and portable external storage device has to be one of the most useful PC accessories you can own, and thanks to the widespread availability of flash-based solutions, today's external drives are more versatile than ever before.

Capacities are now large enough to store and move significant amounts of data between multiple PCs, and transfer speeds have improved to such an extent that you can work on a USB-attached drive as if it were an internal disk. Handy if your laptop doesn't have the storage required to edit those 4K video clips.